Sand Veil is an ability in the Pokémon series that provides multiple tactical advantages under specific weather conditions. The primary effect of Sand Veil is to increase the Pokémon's evasion by 20% when a sandstorm is active. This makes the Pokémon harder to hit, giving it a heightened chance to avoid attacks during sandstorms, which can be a game-changing advantage in battle.
In addition to the evasion boost, another significant benefit of Sand Veil is that it grants immunity to damage from sandstorms. Normally, Pokémon that aren't Rock, Ground, or Steel types take damage at the end of each turn during a sandstorm, but Pokémon with Sand Veil are exempt from this effect. This immunity allows them to remain in the fray longer without worrying about residual damage from the weather condition.
Sand Veil is commonly found on Ground, Rock, or Steel-type Pokémon that are thematically connected to desert or sandstorm environments. Examples of Pokémon with Sand Veil include Sandshrew